> For the complete documentation index, see [llms.txt](https://docs.defguard.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.defguard.net/for-developers/rest-api/core/activity-log/update-an-activity-log-stream.md).

# Update an activity log stream

```json
{"openapi":"3.1.0","info":{"title":"defguard Core API","version":"2.0.3"},"tags":[{"name":"activity log","description":"Activity log events and activity log streams."}],"security":[{"cookie":[]},{"api_token":[]}],"components":{"securitySchemes":{"cookie":{"type":"apiKey","in":"cookie","name":"defguard_session"},"api_token":{"type":"http","scheme":"bearer"}},"schemas":{"ActivityLogStreamModificationRequest":{"type":"object","required":["name","stream_type","stream_config"],"properties":{"name":{"type":"string"},"stream_config":{},"stream_type":{"$ref":"#/components/schemas/ActivityLogStreamType"}}},"ActivityLogStreamType":{"type":"string","enum":["vector_http","logstash_http"]},"ApiErrorResponse":{"type":"object","description":"Body returned with error responses.","required":["msg"],"properties":{"code":{"type":["string","null"],"description":"Machine-readable error code, returned for selected errors."},"msg":{"type":"string","description":"Human-readable error message."}}}}},"paths":{"/api/v1/activity_log_stream/{id}":{"put":{"tags":["activity log"],"summary":"Update an activity log stream","operationId":"modify_activity_log_stream","parameters":[{"name":"id","in":"path","description":"ID of the activity log stream.","required":true,"schema":{"type":"integer","format":"int64"}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/ActivityLogStreamModificationRequest"}}},"required":true},"responses":{"200":{"description":"Activity log stream updated."},"400":{"description":"Invalid stream configuration.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiErrorResponse"}}}},"401":{"description":"Session is missing or invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiErrorResponse"}}}},"403":{"description":"Requires admin privileges and an active enterprise license.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiErrorResponse"}}}},"404":{"description":"Activity log stream not found.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiErrorResponse"}}}},"500":{"description":"Unable to update activity log stream.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ApiErrorResponse"}}}}}}}}}
```